Western Pivot Mount Kit (2017-18 Ford F250/350/450) #31350 Installation guide

Brand: Western

Model: Pivot Mount Kit (2017-18 Ford F250/350/450) #31350

Type: Installation guide

January 15, 2019

Lit. No. 74709, Rev. 02

A DIVISION OF DOUGLAS DYNAMICS, LLC

31350

Pivot Mount

For 2-Stage Tailgate Spreaders

Ford F-250/350/450 2017–18

Installation Instructions

CAUTION

Read this document before installing or

operating the spreader.

Lit. No. 74709, Rev. 02 2 January 15, 2019

SAFETY

SAFETY DEFINITIONS

NOTE: Indicates a situation or action that can lead

to damage to your spreader and vehicle or other

property. Other useful information can also be

described.

WARNING/CAUTION LABELS

Become familiar with and inform users about the

warning and caution labels on the spreader and pivot

mount.

NOTE: If labels are missing or cannot be read, see

your sales outlet.

CAUTION

Indicates a potentially hazardous situation

that, if not avoided, may result in minor or

moderate injury. It may also be used to alert

against unsafe practices.

WARNING

Indicates a potentially hazardous situation

that, if not avoided, could result in death or

serious personal injury.

Lit. No. 74709, Rev. 02 3 January 15, 2019

SAFETY

SAFETY PRECAUTIONS

WARNING

• Driver to keep bystanders minimum of

25 feet away from operating spreader.

• Before working with the spreader, secure all

loose-ﬁ tting clothing and unrestrained hair.

• Before operating the spreader, verify that all

safety guards are in place.

• Before servicing the spreader, wait for

conveyor, auger, and spinner to stop.

• Do not climb into or ride on spreader.

WARNING

Do not install the control for this product in

the deployment path of an air bag. Refer to

vehicle manufacturer's manual for air bag

deployment area(s).

CAUTION

If rear directional, CHMSL light, or brake

stoplights are obstructed by the spreader, the

lights shall be relocated, or auxiliary directional

or brake stoplights shall be installed.

WARNING

Overloading could result in an

accident or damage. Do not exceed

GVWR or GAWR ratings as found

on the driver-side vehicle door

cornerpost. See Loading section to determine

maximum volumes of spreading material.

CAUTION

During the hopper installation we recommend

the addition of an OSHA compliant Backup

Alarm. This alarm is required for OSHA

governed employers.

CAUTION

Disconnect electric and/or hydraulic power

and tag out if required before servicing or

performing maintenance.

NOTE: Lubricate grease ﬁ ttings after each use.

Use a good quality multipurpose grease.

PERSONAL SAFETY

• Remove ignition key and put the vehicle in PARK

or in gear to prevent others from starting the

vehicle during installation or service.

• Wear only snug-ﬁ tting clothing while working on

your vehicle or spreader.

• Do not wear jewelry or a necktie, and secure long

hair.

• Wear safety goggles to protect your eyes from

battery acid, gasoline, dirt, and dust.

• Avoid touching hot surfaces such as the engine,

radiator, hoses, and exhaust pipes.

• Always have a ﬁ re extinguisher rated BC handy,

for ﬂ ammable liquids and electrical ﬁ res.

CAUTION

DO NOT leave unused material in

hopper. Material can freeze or solidify,

causing unit to not work properly.

Empty and clean after each use.

CAUTION

• Do not operate a spreader in need of

maintenance.

• Before operating the spreader, reassemble

any parts or hardware removed for cleaning

or adjusting.

• Before operating the spreader, remove

materials such as cleaning rags, brushes,

and hand tools from the spreader.

• Before operating the spreader, read the

engine owner's manual, if so equipped.

• While operating the spreader, use auxiliary

warning lights, except when prohibited by law.

• Tighten all fasteners according to the

Torque Chart. Refer to Torque Chart for the

recommended torque values.

Lit. No. 74709, Rev. 02 4 January 15, 2019

SAFETY

FIRE AND EXPLOSION

Be careful when using gasoline. Do not use gasoline

to clean parts. Store only in approved containers away

from sources of heat or ﬂ ame.

CELL PHONES

A driver's ﬁ rst responsibility is the safe operation of

the vehicle. The most important thing you can do

to prevent a crash is to avoid distractions and pay

attention to the road. Wait until it is safe to operate

Mobile Communication Equipment such as cell phones,

text messaging devices, pagers, or two-way radios.

VENTILATION

BATTERY SAFETY

NOISE

Airborne noise emission during use is below 70 dB(A)

for the spreader operator.

VIBRATION

Operating spreader vibration does not exceed 2.5 m/s2

to the hand-arm or 0.5 m/s2 to the whole body.

TORQUE CHART

1/4-20 109 154

1/4-28 121 171

5/16-18 150 212

5/16-24 170 240

3/8-16 269 376

3/8-24 297 420

7/16-14 429 606

7/16-20

9/16-12

9/16-18

5/8-11

5/8-18

3/4-10

3/4-16

7/8-9

7/8-14 474 669

644 9091-8

1-12 704 995

1/2-13

1/2-20

11.9

13.7

24.6

27.3

43.6

26.9

53.3

148

49.4

69.8

77.9

106.4

120.0

8.4

9.7

17.4

19.2

30.8

35.0

49.4

55.2

75.3

85.0

M6 x 1.00

M12 x 1.75

M8 x 1.25

M14 x 2.00

M10 x 1.50

M27 x 3.00

M22 x 2.50

M30 x 3.50

M24 x 3.00

M20 x 2.5011.1

19.5

38.5

107

7.7

613

778

1139

1545

450

428

562

796

1117

M33 x 3.50

M36 x 4.00

2101

2701

1468

1952

325

M16 x 2.00 231

167

M18 x 2.50 318222

Recommended Fastener Torque Chart

Size Size

Torque (ft-lb)

Grade

Metric Fasteners Class 8.8 and 10.9

These torque values apply to fasteners

except those noted in the instructions.

Torque (ft-lb)

Grade

Size Size

Torque (ft-lb)

Class

8.8

Class

10.9

Torque (ft-lb)

Class

8.8

Class

10.9

Inch Fasteners Grade 5 and Grade 8

CAUTION

Batteries normally produce explosive gases

which can cause personal injury. Therefore,

do not allow ﬂ ames, sparks, or lit tobacco

to come near the battery. When charging or

working near a battery, always cover your

face and protect your eyes, and also provide

ventilation.

• Batteries contain sulfuric acid, which burns

skin, eyes, and clothing.

• Disconnect the battery before removing or

replacing any electrical components.

CAUTION

Read instructions before assembling.

Fasteners should be ﬁ nger tight until

instructed to tighten according to the torque

chart. Use standard methods and practices

when attaching spreader, including proper

personal protective safety equipment.

WARNING

Vehicle exhaust contains lethal fumes.

Breathing these fumes, even in low

concentrations, can cause death. Never

operate a vehicle in an enclosed area without

venting exhaust to the outside.

Lit. No. 74709, Rev. 02 5 January 15, 2019

CAUTION

Read and adhere to manufacturer's

ice-control material package

labeling, including Safety Data

Sheet requirements.

These installation instructions cover vehicles that have

been recommended for carrying the hopper spreader.

Please see your local dealer for proper vehicle

applications.

CERTIFICATION

WARNING

Overloading could result in an accident or

damage. Do not exceed GVWR or GAWR as

found on the driver-side cornerpost of vehicle.

WARNING

New untitled vehicle installation of a spreader

requires National Highway Trafﬁ c Safety

Administration altered vehicle certiﬁ cation

labeling. Installer to verify that struck load of

snow or ice control material does not exceed

GVWR or GAWR rating label and complies

with FMVSS.

MATERIAL WEIGHTS

Density

Material (lb/ft3)(lb/yd

3)(kg/m

Salt 80 2160 1282

Sand 100 2700 1602

Material densities are approximate and are based on dry,

loose material. It is the responsibility of the operator to

know the weight of the material to be spread and the vehicle

carrying capacity.

CAUTION

Never use wet materials or materials with

foreign debris with any of these spreaders.

These units are designed to handle dry, clean,

free ﬂ owing material.

Lit. No. 74709, Rev. 02 6 January 15, 2019

PIVOT MOUNT INSTALLATION

DS Bracket

Assembly

PS Top Plate

PS Bracket

Assembly

DS Top Plate

Latch Ba

Pivot

Tube

DS Spreader Rest

PS Spreader Rest

Pivot

Channels

Latch Bar

Channels

31350 PIVOT MOUNT KIT COMPONENTS

Lit. No. 74709, Rev. 02 7 January 15, 2019

Bracket

Assembly

Reinstalled

Bracket Fasteners

INSTALLATION INSTRUCTIONS

Park the vehicle on a level surface. Place the shift

lever in PARK or NEUTRAL and set the parking brake.

Turn the engine OFF and remove the key from the

ignition.

Bracket Assemblies

1. Starting on the driver's side of the vehicle, remove

the rear bumper bracket. Retain the original

fasteners for reinstallation.

2. Position the pivot mount driver-side bracket

assembly in place of the original bumper bracket.

Use the fasteners retained in Step 1 to install

the bracket assembly to the vehicle frame and

bumper.

PIVOT MOUNT INSTALLATION

3. Install a 1/2" x 1-1/2" cap screw with 1/2" washer

in each of the lower slots of the bracket assembly.

Add a second washer and a 1/2" locknut on each

cap screw, and hand tighten.

4. Repeat Steps 1 and 2 on the passenger's side.

5. Level the passenger-side bracket assembly front

to back. Tighten the bracket fasteners until snug

enough to hold the bracket in level position.

Remove and retain

original fasteners.

Vehicle

Bumper

Bracket

1/2" x 1-1/2"

Cap Screw,

two 1/2" Washers,

and 1/2" Locknut

in each slot

Bracket

Assembly

Level bracket

front to back.

Lit. No. 74709, Rev. 02 8 January 15, 2019

6. Level the passenger-side bracket assembly side

to side. Check that the bracket is still level front to

back. Hand tighten the fasteners.

7. Repeat Steps 5 and 6 to level the driver-side

bracket assembly.

8. Check that the two bracket assemblies are also

level with each other. If a sufﬁ ciently long level is

not available, use a long straight bar to span the

distance between the brackets and set the level

on the bar.

Adjust the height of one or both brackets as

needed, making sure to keep the individual

brackets level front to back and side to side.

9. Tighten all the bracket fasteners according to the

torque chart.

Latch Bar, Top Plates, and Pivot Tube

1. Install the latch bar to the vertical tab on the

passenger-side bracket assembly using two

3/8" x 1-1/4" cap screws and 3/8" locknuts as

shown. Tighten fasteners until snug.

2. Install the passenger-side top plate to the latch bar

using a 1/2" x 1-1/2" cap screw, two 1/2" washers,

and a 1/2" locknut as shown below. Make sure

that the top plate rests on top of the vehicle bed

rail and against the inner lip of the bed rail. Hand

tighten the fasteners.

Vehicle not shown.

3/8" x 1-1/4" Cap Screws

3/8" Locknuts

Latch Bar

PS Bracket

Assembly

Vehicle not shown.

Latch Bar

1" x 1-1/2"

Cap Screw

1/2" Flat Washers

1/2" Locknut

PS Top Plate

PIVOT MOUNT INSTALLATION

Level bracket side to side.

Lit. No. 74709, Rev. 02 9 January 15, 2019

3. Use a level to conﬁ rm that the latch bar is vertical.

If it is not, shift the top plate forward or backward

along the bed rail until the latch bar is vertical.

Clamp the top plate in position on the bed rail.

4. Using one of the three existing 1/2" holes in the

top plate as a guide, drill a 1/2" hole through the

bed rail. Choose one of the large slotted holes as

a guide for drilling a second 1/2" hole as far away

as possible from the ﬁ rst drilled hole.

NOTE: Pay special attention when drilling or

clamping dissimilar metals to aluminum bodies.

Galvanic corrosion can occur if not handled

properly. Contact vehicle manufacturer for

recommended attachment practices.

PIVOT MOUNT INSTALLATION

Slide top plate forward

or back as needed.

Place level against rear

side of latch bar.

Latch Bar

CAUTION

Before drilling holes, check to be sure that

no vehicle wiring or other components could

be damaged.

5. Install the top plate to the bed rail using

1/2" x 1-1/2" cap screws, 1/2" washers, and

1/2" locknuts as shown below. Hand tighten.

6. Using two of the four existing 3/8" holes on the

inner face of the top plate as a guide, drill two

3/8" holes through the inner lip of the bed rail.

7. Install 3/8" x 1-1/2" cap screws through the

holes drilled in Step 6. Add 3/8" washers and

3/8" locknuts and hand tighten.

1/2" x 1-1/2"

Cap Screws

1/2" Flat

Washers

1/2" Locknuts

3/8" x 1-1/2"

Cap Screw

3/8" Flat

Washer 3/8" Locknut

Lit. No. 74709, Rev. 02 10 January 15, 2019

10. Use a level to conﬁ rm that the pivot tube is

vertical. If it is not, shift the top plate forward or

backward along the bed rail until the pivot tube

is vertical. Clamp the top plate in position on the

bed rail.

11. Repeat Steps 4–8 to drill mounting holes and

install the driver-side top plate to the bed rail.

PIVOT MOUNT INSTALLATION

8. Tighten all the hardware installed in Steps 1–7

according to the torque chart. Remove the clamp

installed in Step 3.

9. Insert the pivot tube into the boss on the

driver-side bracket assembly. Install the driver-side

top plate to the upper end of the pivot tube

assembly using a 1/2" x 1-1/2" cap screw, two

1/2" washers, and a 1/2" locknut as shown below.

Make sure that the top plate rests on top of the

vehicle bed rail and against the inner lip of the rail.

Hand tighten the fasteners.

Slide top plate forward

or back as needed.

Place level against rear

side of pivot tube.

Pivot

Tube

DS Top Plate Pivot Tube

1/2" x 1-1/2"

Cap Screw

1/2" Flat Washers

1/2"

Locknut

CAUTION

Before drilling holes, check to be sure that

no vehicle wiring or other components could

be damaged.

Lit. No. 74709, Rev. 02 11 January 15, 2019

Spreader Rests

1. Install the driver-side and passenger-side

spreader rests to the slotted vertical tabs on

their corresponding bracket assemblies using

two 3/8" x 1-1/4" cap screws, 3/8" washers,

and 3/8" locknuts per side. Do not tighten the

fasteners yet.

2. Push the spreader rests down until they contact

the vehicle bumper. Tighten the spreader rest

fasteners according to the torque chart.

3. Choose two of the existing holes in the

passenger-side spreader rest to use for additional

fastener locations. The holes should be as far

apart as possible. Check for any obstructions and

make sure that there is socket/wrench clearance

under the bumper in the selected hole locations.

4. Use the selected spreader rest holes as guides for

drilling 3/8" holes through the bumper.

NOTE: Pay special attention when drilling or

clamping dissimilar metals to aluminum bodies.

Galvanic corrosion can occur if not handled

properly. Contact vehicle manufacturer for

recommended attachment practices.

5. Insert two 3/8" x 1" carriage bolts through the

holes drilled in Step 4. Secure with 3/8" washers

and 3/8" locknuts and tighten according to the

torque chart.

6. Repeat Steps 3–5 on the driver's side of the

vehicle.

PIVOT MOUNT INSTALLATION

CAUTION

Before drilling holes, check to be sure that no

vehicle wiring or other components could be

damaged.

Spreader Rest Slotted Tab on

Bracket Assembly

Passenger's side

shown.

3/8" x 1-1/4" Cap Screws

with 3/8" Washers and

3/8" Locknuts

3/8" x 1" Carriage Bolts

Installed in Drilled Holes

Lit. No. 74709, Rev. 02 12 January 15, 2019

3. Remove and retain the fasteners holding the pivot

tube to the driver-side top plate. Lift the pivot tube

out of driver-side bracket boss and slide it through

the sockets on the pivot channels.

4. Lift the spreader assembly into place on the

vehicle and reinsert the pivot tube into the boss on

the driver-side bracket assembly.

5. Reinstall the pivot tube to the top plate using the

retained 1/2" fasteners and tighten according to

the torque chart.

6. Pivot the spreader assembly toward closed

position. Adjust total width of the mount assembly

by sliding the latch channels in or out until the

brackets on the ends of the channels align with

the latch bar. Tighten the 3/8" fasteners according

to the torque chart.

7. Lift and slide the latch lock pins into place.

Check that all fasteners are tightened according

to the torque chart.

Pivot Channels and Latch Channels

1. Slide the pivot channels into the spreader frame

on the driver's side as shown below. Install

each pivot channel to the frame using three

3/8" x 1-1/4" cap screws and 3/8" locknuts and

hand tighten.

2. Slide the latch channels into the spreader frame

on the passenger's side. Install each latch channel

to the frame using three 3/8" x 1-1/4" cap screws,

3/8" ﬂ at washers, and 3/8" locknuts. Leave the

fasteners loose for now.

NOTE: The latch channels are slotted to allow for

width adjustment of the pivot mount. To ensure a

tight channel-to-frame connection, the supplied

ﬂ at washers must be used with the fasteners

installed in these mounting slots.

PIVOT MOUNT INSTALLATION

Pivot Channels

3/8" Locknut

3/8" x 1-1/4" Cap Screw

Latch Channels

3/8" Locknut

3/8" Flat

Washer

3/8" x 1-1/4"

Cap Screw

Lit. No. 74709, Rev. 02 14 January 15, 2019

The company reserves the right under its product improvement policy to change construction or design details and furnish equipment when

so altered without reference to illustrations or speciﬁ cations used. This equipment manufacturer or the vehicle manufacturer may require or

recommend optional equipment for spreaders. Do not exceed vehicle ratings with a spreader. The company offers a limited warranty for all

spreaders and accessories. See separately printed page for this important information.

Printed in U.S.A.

Western Pivot Mount Kit (2017-18 Ford F250/350/450) #31350 Installation guide

Western Pivot Mount Kit (2017-18 Ford F250/350/450) #31350 Installation guide

Western Pivot Mount Kit (2017-18 Ford F250/350/450) #31350 Installation guide

Related papers

Other documents